C11111333133313232233133313331333133112111112113313331311331311221133231   >>    C1111133313331323223313331333133313311211111211331333131133131122113323   <<    C11111333133313232233133313331333133112111112113313331311331311221133233   >>      C11111333133313232233133313331333133112111112113313331311331311221133232   >>